.head-all{
    opacity: 1;
}
.div-head{
    width:100%;
    height:80px;
    border: none;
    opacity: 1;
}
.div-box{
    width: 70%;
    height: 60%;
    margin-left:15% ;
    margin-top: 50px;
    opacity: 1;
}
#cj{
    color: black;
    text-decoration: none;
}
a{color: red}
.form-label{
    float: left;
    display: block;
    padding: 9px 10px;
    width: 90px;
    font-weight: 400;
    line-height: 20px;
    text-align: right
}
#start_time{
    background-color: #92B8B1;
}
#sqbutton{
    margin-left: 20%;
    margin-top: 10%;
}
#submit{
    margin-left: 10%;
}
.button-up, .button-down{
    background-color: white;
    border:1px solid #dcdfe6;
    width:40px;
    height: 19px;
}
.canvas {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}